Type:	Package
Title:	Morphological Allometry of Rorquals
Version:	0.1.1
Description:	Predicts morphological parameters of rorquals (e.g. body mass, flipper length, maximum engulfment capacity) from body length using allometric equations from Kahane-Rapport and Goldbogen (2018) <doi:10.1002/jmor.20846>.
License:	MIT + file LICENSE
Depends:	R (≥ 2.10)
Imports:	dplyr, magrittr
Encoding:	UTF-8
LazyData:	true
RoxygenNote:	7.0.2
NeedsCompilation:	no
Packaged:	2020-03-05 19:31:13 UTC; frank
Author:	Max Czapanskiy [aut, cre] (ORCID-ID: 0000-0002-6302-905X), Shirel Kahane-Rapport [aut], Jeremy Goldbogen [aut]
Maintainer:	Max Czapanskiy <maxczapanskiy@gmail.com>
Repository:	CRAN
Date/Publication:	2020-03-15 11:30:02 UTC

Pipe operator

Description

See magrittr::%>% for details.

Usage

lhs %>% rhs

Allometric equations for rorqual morphology

Description

A dataset including the intercepts and slopes of the ordinary least squares allometric regression (in log10 space) of various morphometric parameters against body length. Use the formula 10^intercept * length^slope to predict morphology.

Usage

allometry

Format

A data frame with 5 columns:

species_code

two letter codes: bw, bp, mn, ba, be, and bs

binomial

scientific binomials

morphology

morphological parameter e.g. flipper length, body mass

slope

slope of the allometric relationship

intercept

intercept of the allometric relationship

Source

doi: 10.1002/jmor.20846

Generic morphology function

Description

Generic morphology function

Usage

morph_fun(species, length_m, morph)

Arguments

Value

vector of measurements

Power law

Description

Power law

Usage

power_law(a, b, x)

Arguments

Value

a vector of power law results

Rorqual bizygomatic skull width

Description

Rorqual bizygomatic skull width

Usage

rorq_bizygomatic(species, length_m)

Arguments

Value

a vector of bizygomatic skull widths in m

Examples

# A 22m blue whale
rorq_bizygomatic("bw", 22)

# A 7m minke
rorq_bizygomatic("ba", 7)

Rorqual engulfment capacity

Description

Rorqual engulfment capacity

Usage

rorq_engulf(species, length_m)

Arguments

Value

a vector of engulfment capacities in kg of water

Examples

# A 22m blue whale
rorq_engulf("bw", 22)

# A 7m minke
rorq_engulf("ba", 7)

Rorqual flipper length

Description

Rorqual flipper length

Usage

rorq_flipper(species, length_m)

Arguments

Value

a vector of flipper lengths in m

Examples

# A 22m blue whale
rorq_flipper("bw", 22)

# A 7m minke
rorq_flipper("ba", 7)

Rorqual fluke length

Description

Rorqual fluke length

Usage

rorq_fluke(species, length_m)

Arguments

Value

a vector of fluke lengths in m

Examples

# A 22m blue whale
rorq_fluke("bw", 22)

# A 7m minke
rorq_fluke("ba", 7)

Rorqual projected mandible length

Description

Rorqual projected mandible length

Usage

rorq_mandible(species, length_m)

Arguments

Value

a vector of laterally projected mandible lengths in m

Examples

# A 22m blue whale
rorq_mandible("bw", 22)

# A 7m minke
rorq_mandible("ba", 7)

Rorqual mass

Description

Rorqual mass

Usage

rorq_mass(species, length_m)

Arguments

Value

a vector of masses in kg

Examples

# A 22m blue whale
rorq_mass("bw", 22)

# A 7m minke
rorq_mass("ba", 7)

Rorqual engulfed water mass to body mass ratio

Description

Rorqual engulfed water mass to body mass ratio

Usage

rorq_massratio(species, length_m)

Arguments

Value

a vector of ratios (engulfed water mass to body mass)

Examples

# A 22m blue whale
rorq_massratio("bw", 22)

# A 7m minke
rorq_massratio("ba", 7)

Rorqual ventral groove blubber length

Description

Rorqual ventral groove blubber length

Usage

rorq_vgb(species, length_m)

Arguments

Value

a vector of VGB lengths in m

Examples

# A 22m blue whale
rorq_vgb("bw", 22)

# A 7m minke
rorq_vgb("ba", 7)